public class Test4 {
    public static void main(String[] args) {
        MethodGeneric.setFlag("张三");
        MethodGeneric.setFlag(123123);

        String bjxt = MethodGeneric.getFlag("bjxt");
        System.out.println(bjxt);
        Integer flag = MethodGeneric.getFlag(123123);
        System.out.println(flag);
    }
}
